as3io / modlr-persister-mongodb

        }

        $changeset = $model->getChangeSet();

        foreach ($changeset['attributes'] as $key => $values) {

            $value = $this->prepareAttribute($metadata->getAttribute($key), $values['new']);

            if (null === $value) {

                continue;

            }

            $insert[$key] = $value;

        }

        foreach ($changeset['hasOne'] as $key => $values) {

            $value = $this->prepareHasOne($metadata->getRelationship($key), $values['new']);

            if (null === $value) {

            }

            $insert[$key] = $value;

        }

        foreach ($changeset['hasOne'] as $key => $values) {

            $value = $this->prepareHasOne($metadata->getRelationship($key), $values['new']);

            if (null === $value) {

                continue;

            }

            $insert[$key] = $value;

        }

        foreach ($changeset['hasMany'] as $key => $values) {

            $value = $this->prepareHasMany($metadata->getRelationship($key), $values['new']);

            if (null === $value) {

            }

            $insert[$key] = $value;

        }

        foreach ($changeset['hasMany'] as $key => $values) {

            $value = $this->prepareHasMany($metadata->getRelationship($key), $values['new']);

            if (null === $value) {

                continue;

            }

            $insert[$key] = $value;

        }

        $this->createQueryBuilder($metadata)

            ->insert()

            ->setNewObj($insert)